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DIETHYL SQUARATE |
| Synonyms. Squaric acid diethyl ester; 3,4-Diethoxy-3-cyclobutene-1,2-dione; Diethyl squarate; Diethoxycyclobutenedione; |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
5231-87-8 |
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EINECS RN |
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FORMULA |
(C2H5O)2C4(=O)2 |
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MOLE WEIGHT |
170.16 |
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H.S CODE |
2914.50.5000 |
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SMILES |
C1(=C(OCC)C(C1=O)=O)OCC |
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CLASSIFICATION |
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EXTRA NOTES |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
clear to pale yellow liquid |
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MELTING POINT |
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BOILING POINT |
95 C at 0.5 mm Hg |
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DENSITY |
1.15 |
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SOLUBILITY IN WATER |
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| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
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VAPOR PRESSURE |
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AUTOIGNITION TEMP |
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| pK |
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REFRACTIVE INDEX |
1.509 |
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FLASH POINT |
110 C |
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| STABILITY AND REACTIVITY | |
| STABILITY | Stable under normal conditions. |
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INCOMPATIBLE MATERIALS |
Strong oxidizing agents |
| POLYMERIZATION |
Has not been reported |
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NFPA RATINGS |
Health: 1, Flammability: 0, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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USA.gov - Diethyl squarate Wikipedia Linking - Squaric acid Google Scholar Search - Squaric acid diethyl ester Drug Information Portal (U.S. National Library of Medicine) - Squaric acid diethyl ester PubChem Compound Summary - Squaric acid diethyl ester http://www.ncbi.nlm.nih.gov/ - Squaric acid diethyl ester Material Safety Data Sheet - Squaric acid diethyl ester http://www.sigmaaldrich.com/ |
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| SALES SPECIFICATION | |
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APPEARANCE |
clear to pale yellow liquid |
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ASSAY |
98% min |
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WATER |
1.0% max |
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| TRANSPORT & REGULATORY INFORMATION | |
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UN NO. |
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| HAZARD CLASS |
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| PACKING GROUP | |
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| SAFETY INFORMATION | |
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HAZARD OVERVIEW |
OSHA Hazards: Skin sensitiser,, Irritant. GHS (Globally Harmonised System) Classification: Skin irritation, Eye irritation, Skin sensitisation, Specific target organ toxicity - single exposure. Potential Health Effects: Eyes: May cause eye irritation. Skin: May be harmful if absorbed through skin. May cause skin irritation. Inhalation: May be harmful if inhaled. May cause respiratory tract irritation. Ingestion: May be harmful if swallowed. |
| SIGNAL WORD | Warning |
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PICTOGRAMS |
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HAZARD STATEMENTS |
H315-H319-H335 |
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P STATEMENTS |
P261-P305 + P351 + P338 |
| EC DIRECTIVES |
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| HAZARD CODES |
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RISK PHRASES |
36/37/38-42/43 |
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SAFETY PHRASES |
7-26-37/39 |
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| PACKING |
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Preserve in light-resistant and well-closed containers |
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